:root {
    --jam-red: #d71920;

    --jam-text: #171717;
    --jam-muted: #666666;

    --jam-border: #ececec;

    --jam-bg: #ffffff;
    --jam-bg-soft: #f7f7f5;

    --jam-radius: 10px;

    --jam-header-height: 84px;
    --jam-header-height-compact: 66px;
}


/* =========================
   Base
========================= */

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-width: 320px;

    font-family:
        system-ui,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        sans-serif;

    color: var(--jam-text);
    background: var(--jam-bg);
}


/* =========================
   Header
========================= */

.site-header {
    position: sticky;
    top: 0;
    z-index: 1030;

    background: rgba(255, 255, 255, 0.96);
    border-bottom: 1px solid transparent;

    transition:
        background-color 0.25s ease,
        border-color 0.25s ease,
        backdrop-filter 0.25s ease;
}

.site-header .navbar {
    min-height: var(--jam-header-height);
    padding-block: 0;

    transition: min-height 0.25s ease;
}

.site-header.is-scrolled {
    background: rgba(255, 255, 255, 0.88);
    border-bottom-color: var(--jam-border);

    backdrop-filter: blur(14px);
}

.site-header.is-scrolled .navbar {
    min-height: var(--jam-header-height-compact);
}


/* =========================
   Logo
========================= */

.site-logo {
    display: inline-flex;
    align-items: center;

    margin-right: 2rem;

    text-decoration: none;
}

.site-logo__image {
    display: block;

    width: auto;
    height: 44px;

    object-fit: contain;
}
@media (max-width: 991.98px) {
    .site-logo__image {
        height: 36px;
    }
}

.site-logo:hover,
.site-logo:focus {
    color: var(--jam-red);
}


/* =========================
   Navigation
========================= */

.site-header .navbar-nav {
    gap: 0.25rem;
}

.site-header .nav-link {
    position: relative;

    padding: 0.5rem 0.75rem;

    color: var(--jam-text);

    font-size: 0.95rem;
    font-weight: 500;

    text-decoration: none;

    transition: color 0.2s ease;
}

.site-header .nav-link::after {
    content: "";

    position: absolute;
    left: 0.75rem;
    right: 0.75rem;
    bottom: 0.2rem;

    height: 2px;

    background: var(--jam-red);

    transform: scaleX(0);
    transform-origin: left;

    transition: transform 0.2s ease;
}

.site-header .nav-link:hover,
.site-header .nav-link:focus {
    color: var(--jam-red);
}

.site-header .nav-link:hover::after,
.site-header .nav-link:focus::after {
    transform: scaleX(1);
}


/* =========================
   Header phone
========================= */

.site-header__phone {
    color: var(--jam-text);

    font-size: 0.95rem;
    font-weight: 600;

    text-decoration: none;
    white-space: nowrap;

    transition: color 0.2s ease;
}

.site-header__phone:hover,
.site-header__phone:focus {
    color: var(--jam-red);
}


/* =========================
   Header CTA
========================= */

.btn-jam-header {
    display: inline-flex;
    align-items: center;
    justify-content: center;

    min-height: 44px;
    padding: 0.65rem 1rem;

    border: 1px solid var(--jam-red);
    border-radius: var(--jam-radius);

    color: #ffffff;
    background: var(--jam-red);

    font-size: 0.9rem;
    font-weight: 600;
    line-height: 1;

    text-decoration: none;

    transition:
        background-color 0.2s ease,
        border-color 0.2s ease,
        transform 0.2s ease;
}

.btn-jam-header:hover,
.btn-jam-header:focus {
    color: #ffffff;
    background: #bb141a;
    border-color: #bb141a;

    transform: translateY(-1px);
}


/* =========================
   Mobile menu button
========================= */

.site-menu-toggle {
    display: inline-flex;

    width: 44px;
    height: 44px;
    padding: 10px;

    flex-direction: column;
    align-items: stretch;
    justify-content: center;

    gap: 5px;

    border: 0;
    border-radius: 8px;

    background: transparent;

    box-shadow: none;
}

.site-menu-toggle span {
    display: block;

    width: 100%;
    height: 2px;

    background: var(--jam-text);

    transition:
        transform 0.2s ease,
        opacity 0.2s ease;
}

.site-menu-toggle:focus-visible {
    outline: 3px solid rgba(215, 25, 32, 0.18);
    outline-offset: 2px;
}


/* =========================
   Hero
========================= */

.hero {
    overflow: hidden;

    background: var(--jam-bg);
}

.hero__row {
    min-height: calc(100vh - var(--jam-header-height));

    padding-block: 3.5rem 4rem;
}


/* =========================
   Hero content
========================= */

.hero__content {
    max-width: 34rem;
}

.hero__eyebrow {
    margin-bottom: 1.25rem;

    color: var(--jam-red);

    font-size: 0.78rem;
    font-weight: 700;
    line-height: 1.4;

    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.hero__title {
    margin: 0;

    color: var(--jam-text);

    font-size: clamp(3.25rem, 5vw, 4.75rem);
    font-weight: 800;
    line-height: 1;

    letter-spacing: -0.045em;
}

.hero__text {
    max-width: 29rem;

    margin-top: 1.75rem;
    margin-bottom: 0;

    color: var(--jam-muted);

    font-size: 1.15rem;
    line-height: 1.55;
}


/* =========================
   Hero actions
========================= */

.hero__actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;

    gap: 1.5rem;

    margin-top: 2rem;
}

.btn-jam-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;

    min-height: 54px;
    padding: 0.85rem 1.4rem;

    border: 1px solid var(--jam-red);
    border-radius: var(--jam-radius);

    color: #ffffff;
    background: var(--jam-red);

    font-size: 1rem;
    font-weight: 600;
    line-height: 1;

    text-decoration: none;

    transition:
        background-color 0.2s ease,
        border-color 0.2s ease,
        transform 0.2s ease;
}

.btn-jam-primary:hover,
.btn-jam-primary:focus {
    color: #ffffff;
    background: #bb141a;
    border-color: #bb141a;

    transform: translateY(-2px);
}

.hero__link {
    display: inline-flex;
    align-items: center;

    gap: 0.5rem;

    color: var(--jam-text);

    font-size: 1rem;
    font-weight: 600;

    text-decoration: none;

    transition: color 0.2s ease;
}

.hero__link span {
    transition: transform 0.2s ease;
}

.hero__link:hover,
.hero__link:focus {
    color: var(--jam-red);
}

.hero__link:hover span,
.hero__link:focus span {
    transform: translateX(4px);
}


/* =========================
   Hero media
========================= */

.hero-media {
    position: relative;
}

.hero-media__image {
    display: flex;
    align-items: center;
    justify-content: center;

    width: 100%;

    aspect-ratio: 5 / 4;

    overflow: hidden;

    background: var(--jam-bg);
}

.hero-media__image img {
    display: block;

    width: 100%;
    height: 100%;

    object-fit: cover;
}

.hero-media__controls {
    display: flex;
    align-items: center;
    justify-content: space-between;

    margin-top: 0.9rem;

    color: var(--jam-muted);

    font-size: 0.85rem;
}

.hero-media__controls > div {
    display: flex;

    gap: 0.35rem;
}

.hero-media__controls button {
    display: inline-flex;
    align-items: center;
    justify-content: center;

    width: 40px;
    height: 40px;

    border: 1px solid var(--jam-border);
    border-radius: 50%;

    color: var(--jam-text);
    background: #ffffff;

    transition:
        color 0.2s ease,
        border-color 0.2s ease,
        transform 0.2s ease;
}

.hero-media__controls button:hover,
.hero-media__controls button:focus {
    color: var(--jam-red);

    border-color: var(--jam-red);

    transform: translateY(-1px);
}


/* =========================
   Tablet / mobile
========================= */

@media (max-width: 991.98px) {
    :root {
        --jam-header-height: 64px;
    }

    .site-header .navbar {
        min-height: var(--jam-header-height);
    }

    .site-header.is-scrolled .navbar {
        min-height: var(--jam-header-height);
    }

    .site-header .navbar-collapse {
        padding-block: 1rem 1.25rem;
    }

    .site-header .navbar-nav {
        gap: 0;
    }

    .site-header .nav-link {
        padding: 0.8rem 0;

        font-size: 1.05rem;
    }

    .site-header .nav-link::after {
        display: none;
    }

    .site-header__phone,
    .btn-jam-header {
        margin-top: 1rem;
    }

    .hero__row {
        min-height: auto;

        padding-block: 2.5rem 3rem;
    }

    .hero__content {
        max-width: none;
    }

    .hero__title {
        max-width: 10ch;

        font-size: clamp(2.75rem, 8vw, 4rem);
    }

    .hero__text {
        max-width: 34rem;
    }

    .hero-media {
        margin-top: 0.5rem;
    }
}


/* =========================
   Small mobile
========================= */

@media (max-width: 575.98px) {
    .hero__row {
        padding-block: 2rem 2.5rem;
    }

    .hero__eyebrow {
        margin-bottom: 1rem;

        font-size: 0.7rem;

        letter-spacing: 0.11em;
    }

    .hero__title {
        max-width: 100%;

        font-size: clamp(2.6rem, 12vw, 3.2rem);
        line-height: 0.98;
    }

    .hero__text {
        margin-top: 1.25rem;

        font-size: 1rem;
        line-height: 1.5;
    }

    .hero__actions {
        gap: 1rem;

        margin-top: 1.5rem;
    }

    .btn-jam-primary {
        min-height: 52px;

        padding-inline: 1.2rem;
    }

    .hero-media__image {
        aspect-ratio: 4 / 3;
    }
}
/* =========================
   service
========================= */

.service-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
/* =========================
   About
========================= */

.about-media {
    overflow: hidden;
}

.about-image {
    display: block;

    width: 100%;
    height: auto;

    object-fit: cover;
}
/* =========================
   Works slider
========================= */

.works-slider {
    position: relative;
}

.works-slider__track {
    display: flex;
    gap: 1.5rem;

    overflow-x: auto;
    scroll-behavior: smooth;
    scroll-snap-type: x mandatory;

    scrollbar-width: none;
}

.works-slider__track::-webkit-scrollbar {
    display: none;
}

.works-slide {
    flex: 0 0 calc((100% - 3rem) / 3);

    scroll-snap-align: start;
}

.works-slide__link {
    display: block;

    color: var(--jam-text);
    text-decoration: none;
}

.works-slide__image {
    position: relative;

    display: flex;
    align-items: center;
    justify-content: center;

    width: 100%;
    aspect-ratio: 4 / 3;

    overflow: hidden;

    background: var(--jam-bg-soft);
}

.works-slide__image img {
    display: block;

    width: 100%;
    height: 100%;

    object-fit: cover;

    transition: transform 0.35s ease;
}

.works-slide__image span {
    color: var(--jam-muted);
}

.works-slide__link:hover .works-slide__image img {
    transform: scale(1.03);
}

.works-slide__content {
    padding-top: 0.9rem;
}

.works-slide__title {
    margin: 0 0 0.25rem;

    font-size: 1.1rem;
    font-weight: 700;
}

.works-slide__category {
    margin: 0;

    color: var(--jam-muted);

    font-size: 0.9rem;
}

.works-slider__controls {
    display: flex;
    justify-content: flex-end;

    gap: 0.5rem;

    margin-top: 1.5rem;
}

.works-slider__button {
    display: inline-flex;
    align-items: center;
    justify-content: center;

    width: 42px;
    height: 42px;

    border: 1px solid var(--jam-border);
    border-radius: 50%;

    color: var(--jam-text);
    background: #fff;

    transition:
        color 0.2s ease,
        border-color 0.2s ease,
        transform 0.2s ease;
}

.works-slider__button:hover,
.works-slider__button:focus {
    color: var(--jam-red);
    border-color: var(--jam-red);

    transform: translateY(-1px);
}


@media (max-width: 991.98px) {
    .works-slide {
        flex-basis: calc((100% - 1.5rem) / 2);
    }
}


@media (max-width: 575.98px) {
    .works-slider__track {
        gap: 1rem;
    }

    .works-slide {
        flex-basis: 85%;
    }
}
/* =========================
   Footer
========================= */

.site-footer {
    margin-top: 0;

    background: #f7f7f5;

    border-top: 1px solid var(--jam-border);
}

.site-footer__top {
    padding-block: 4rem 3rem;
}



.site-footer__logo:hover,
.site-footer__logo:focus {
    color: var(--jam-red);
}

.site-footer__description {
    max-width: 28rem;

    margin: 0;

    color: var(--jam-muted);

    font-size: 0.95rem;
    line-height: 1.65;
}

.site-footer__title {
    margin: 0 0 1rem;

    color: var(--jam-text);

    font-size: 0.8rem;
    font-weight: 700;

    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.site-footer__nav {
    margin: 0;
    padding: 0;

    list-style: none;
}

.site-footer__nav li + li {
    margin-top: 0.6rem;
}

.site-footer__nav a,
.site-footer__contacts a {
    color: var(--jam-text);

    font-size: 0.95rem;

    text-decoration: none;

    transition: color 0.2s ease;
}

.site-footer__nav a:hover,
.site-footer__nav a:focus,
.site-footer__contacts a:hover,
.site-footer__contacts a:focus {
    color: var(--jam-red);
}

.site-footer__contacts {
    display: flex;

    flex-direction: column;

    gap: 0.6rem;
}

.site-footer__contacts p {
    margin: 0;

    color: var(--jam-muted);

    font-size: 0.95rem;
}

.site-footer__bottom {
    display: flex;

    align-items: center;
    justify-content: space-between;

    gap: 1rem;

    padding-block: 1.25rem;

    border-top: 1px solid var(--jam-border);
}

.site-footer__bottom p {
    margin: 0;

    color: var(--jam-muted);

    font-size: 0.85rem;
}

.site-footer__bottom a {
    color: var(--jam-muted);

    font-size: 0.85rem;

    text-decoration: none;

    transition: color 0.2s ease;
}

.site-footer__bottom a:hover,
.site-footer__bottom a:focus {
    color: var(--jam-red);
}


/* Footer mobile */

@media (max-width: 767.98px) {
    .site-footer__top {
        padding-block: 3rem 2rem;
    }

    .site-footer__description {
        max-width: none;
    }

    .site-footer__bottom {
        flex-direction: column;

        align-items: flex-start;

        padding-block: 1.25rem 1.5rem;
    }
}

/* =========================
   Portfolio page
========================= */

.portfolio-page {
    padding-block: 4.5rem 5rem;
}

.portfolio-header {
    max-width: 48rem;
}

.portfolio-eyebrow {
    margin-bottom: 1rem;

    color: var(--jam-red);

    font-size: 0.78rem;
    font-weight: 700;
    line-height: 1.4;

    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.portfolio-title {
    margin: 0;

    color: var(--jam-text);

    font-size: clamp(3.25rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1;

    letter-spacing: -0.04em;
}

.portfolio-intro {
    max-width: 38rem;

    margin-top: 1.5rem;
    margin-bottom: 0;

    color: var(--jam-muted);

    font-size: 1.1rem;
    line-height: 1.55;
}


/* =========================
   Portfolio filters
========================= */

.portfolio-filters {
    display: flex;
    align-items: center;

    gap: 1.5rem;

    margin-top: 2.5rem;
    padding-bottom: 0.75rem;

    overflow-x: auto;

    white-space: nowrap;

    scrollbar-width: none;
}

.portfolio-filters::-webkit-scrollbar {
    display: none;
}

.portfolio-filter {
    position: relative;

    flex: 0 0 auto;

    padding: 0 0 0.5rem;

    border: 0;

    color: var(--jam-muted);
    background: transparent;

    font-size: 0.95rem;
    font-weight: 500;

    transition: color 0.2s ease;
}

.portfolio-filter::after {
    content: "";

    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;

    height: 2px;

    background: var(--jam-red);

    transform: scaleX(0);
    transform-origin: left;

    transition: transform 0.2s ease;
}

.portfolio-filter:hover,
.portfolio-filter:focus-visible,
.portfolio-filter.is-active {
    color: var(--jam-text);
}

.portfolio-filter.is-active {
    font-weight: 700;
}

.portfolio-filter.is-active::after {
    transform: scaleX(1);
}


/* =========================
   Portfolio grid
========================= */

.portfolio-grid {
    display: grid;

    grid-template-columns: repeat(3, minmax(0, 1fr));

    gap: 2.5rem 1.5rem;

    margin-top: 2rem;
}


/* =========================
   Portfolio card
========================= */

.portfolio-card {
    min-width: 0;

    transition:
        opacity 0.25s ease,
        transform 0.25s ease;
}

.portfolio-card.is-hidden {
    display: none;
}

.portfolio-card__button {
    display: block;

    width: 100%;
    padding: 0;

    border: 0;

    color: inherit;
    background: transparent;

    text-align: left;
}

.portfolio-card__media {
    position: relative;

    width: 100%;

    aspect-ratio: 4 / 3;

    overflow: hidden;

    background: var(--jam-bg-soft);
}

.portfolio-card__media::after {
    content: "";

    position: absolute;
    inset: 0;

    background: rgba(0, 0, 0, 0);

    transition: background-color 0.35s ease;
}

.portfolio-card__media img {
    display: block;

    width: 100%;
    height: 100%;

    object-fit: cover;

    transition: transform 0.35s ease;
}

.portfolio-card__content {
    padding-top: 0.9rem;
}

.portfolio-card__title {
    display: flex;
    align-items: baseline;
    justify-content: space-between;

    gap: 0.75rem;

    margin: 0;

    color: var(--jam-text);

    font-size: 1.15rem;
    font-weight: 650;
    line-height: 1.35;

    transition: color 0.2s ease;
}

.portfolio-card__title span {
    flex: 0 0 auto;

    font-size: 0.9em;

    opacity: 0;

    transform: translate(-4px, 4px);

    transition:
        opacity 0.2s ease,
        transform 0.2s ease;
}

.portfolio-card__category {
    margin: 0.3rem 0 0;

    color: var(--jam-muted);

    font-size: 0.9rem;
}

.portfolio-card__button:hover .portfolio-card__media img {
    transform: scale(1.035);
}

.portfolio-card__button:hover .portfolio-card__media::after {
    background: rgba(0, 0, 0, 0.05);
}

.portfolio-card__button:hover .portfolio-card__title {
    color: var(--jam-red);
}

.portfolio-card__button:hover .portfolio-card__title span {
    opacity: 1;

    transform: translate(0, 0);
}


/* =========================
   Portfolio responsive
========================= */

@media (max-width: 991.98px) {
    .portfolio-page {
        padding-block: 3.5rem 4rem;
    }

    .portfolio-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 575.98px) {
    .portfolio-page {
        padding-block: 2.75rem 3.5rem;
    }

    .portfolio-title {
        font-size: clamp(2.5rem, 12vw, 3rem);
    }

    .portfolio-intro {
        margin-top: 1.25rem;

        font-size: 1rem;
    }

    .portfolio-filters {
        gap: 1.25rem;

        margin-top: 2rem;
    }

    .portfolio-grid {
        grid-template-columns: 1fr;

        gap: 2rem;

        margin-top: 1.5rem;
    }
}
/* =========================
   Portfolio lightbox
========================= */

.portfolio-lightbox .modal-dialog {
    max-width: min(1200px, calc(100vw - 2rem));
}

.portfolio-lightbox .modal-content {
    position: relative;

    border: 0;
    border-radius: 12px;

    background: #ffffff;

    overflow: hidden;
}

.portfolio-lightbox .modal-body {
    padding: 0;
}

.portfolio-lightbox__close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    z-index: 2;

    width: 42px;
    height: 42px;

    padding: 0.75rem;

    border-radius: 50%;

    background-color: rgba(255, 255, 255, 0.92);

    box-shadow: 0 4px 18px rgba(0, 0, 0, 0.12);

    opacity: 1;
}

.portfolio-lightbox__media {
    display: flex;
    align-items: center;
    justify-content: center;

    min-height: 60vh;
    max-height: 78vh;

    background: #111111;
}

.portfolio-lightbox__image {
    display: block;

    width: 100%;
    height: 100%;

    max-height: 78vh;

    object-fit: contain;
}

.portfolio-lightbox__info {
    padding: 1.25rem 1.5rem 1.5rem;
}

.portfolio-lightbox__title {
    margin: 0;

    color: var(--jam-text);

    font-size: 1.35rem;
    font-weight: 700;
    line-height: 1.3;
}

.portfolio-lightbox__category {
    margin: 0.35rem 0 0;

    color: var(--jam-muted);

    font-size: 0.95rem;
}


/* Mobile */

@media (max-width: 575.98px) {
    .portfolio-lightbox .modal-dialog {
        max-width: calc(100vw - 1rem);
        margin: 0.5rem auto;
    }

    .portfolio-lightbox__media {
        min-height: 0;
        max-height: 70vh;
    }

    .portfolio-lightbox__image {
        max-height: 70vh;
    }

    .portfolio-lightbox__info {
        padding: 1rem;
    }

    .portfolio-lightbox__title {
        font-size: 1.15rem;
    }

    .portfolio-lightbox__close {
        top: 0.75rem;
        right: 0.75rem;

        width: 38px;
        height: 38px;
    }
}

/* =========================
   Contact map
========================= */

.contact-map {
    width: 100%;
    height: 460px;

    overflow: hidden;

    border-radius: 12px;

    background: var(--jam-bg-soft);
}

@media (max-width: 767.98px) {
    .contact-map {
        height: 360px;

        border-radius: 10px;
    }
}
/* =========================
   Leaflet map markers
========================= */

.jam-map-marker {
    background: transparent;
    border: 0;
}

.jam-map-marker span {
    display: block;

    width: 28px;
    height: 28px;

    border: 4px solid #ffffff;
    border-radius: 50%;

    background: var(--jam-red);

    box-shadow:
        0 4px 12px rgba(0, 0, 0, 0.18),
        0 0 0 1px rgba(0, 0, 0, 0.08);
}